Home / 65,426.40-98,139.60-57,650.40

Finding the Fourth Proportional to 65,426.40, 98,139.60 and 57,650.40

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Solution

The fourth proportional to 65,426.40, 98,139.60 and 57,650.40 is: 86,475.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,426.40 : 98,139.60 = 57,650.40 : x
  2. Step 2: Convert to fraction form
    65,426.40/98,139.60 = 57,650.40/x
  3. Step 3: Cross multiply
    65,426.40x = 98,139.60 × 57,650.40
  4. Step 4: Simplify right side
    65,426.40x = 5,657,787,195.84
  5. Step 5: Solve for x
    x = 5,657,787,195.84/65,426.40
  6. Step 6: Final answer
    x = 86,475.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.